Mute Swans: From 2 Birds to 120 and the Yellowstone Removal
A Paradise Valley landowner's two mute swans grew to 120 by the late 1970s, prompting a Yellowstone-led removal that restored trumpeters by the mid-1990s.
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In 1987, a removal effort led by Yellowstone began in Paradise Valley. The birds traced back to two mute swans a landowner acquired in the 1960s for their beauty; by the late 1970s, they numbered 120. The Economic Times reported the episode.
The program aimed to eliminate the mute swans and restore the trumpeter swan population. The article said it succeeded by the mid-1990s.
The original pair was kept for its beauty. The population grew from those two birds to 120, and that growth made the birds a management problem for the valley and Yellowstone. The program's target was the introduced mute swans; the trumpeter swan was the species to be restored.
The removal effort ended the expansion that had produced 120 birds from two. Trumpeter swans were the beneficiaries.
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